W-9 collection
Collect vendor tax documents with one compliance record
Centralize W-9 and related tax paperwork on the vendor profile so AP and tax share the same source of truth.
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Related: W-9 Collector · W-9 collection · W-9 version control · W-9 validation before payment · Vendor W-9 management · All solutions
The common problem
Tax documents arrive as ad-hoc attachments with no link to the vendor master record or payment holds.
- State withholding forms live outside the W-9 folder
- Re-certification after mergers is manual
- Auditors request packets assembled by hand
- No reminder cycle for expiring tax certifications
How W-9 collection works
Request
Send a secure link for vendors to complete IRS Form W-9. No vendor account required.
Validate
Required fields are checked before acceptance so blank or unsigned forms do not enter your records.
Monitor
Re-collect when records go stale. Reminders run until every active vendor has a current W-9 on file.
Benefits
- No vendor account required
- Bulk W-9 requests for vendor lists
- Full audit trail for tax and finance reviews
- Stale W-9 alerts before year-end reporting
Workflow
Operationalize vendor tax document collection
Keelstar gives your team a repeatable workflow for collect vendor tax documents with one compliance record. Requests, submissions, and reminders stay on the vendor record instead of scattered inboxes.
Audit readiness
Controls auditors expect
Every action is timestamped so you can show who requested documentation, when it arrived, and what changed on re-collection.
- Branded outbound requests with reminder cadence
- Validation before documents enter the vendor file
- Exportable history for tax, insurance, or payer reviews
Who it's for
- Accounts payable managers preparing for 1099 season
- Vendor onboarding specialists collecting tax IDs at setup
- Controllers who need backup withholding documentation
- Operations teams coordinating hundreds of vendor records
What good looks like
- Every active vendor has a validated W-9 on file
- Legal name and TIN were checked before first payment
- Reminders run automatically for non-responders
- Stale forms are flagged for re-collection
- Request and submission history is exportable
Need a tracked version? Set up a vendor portal, vendor onboarding workflow, or browse all solution guides.
FAQ
Vendors and employees typically complete tasks through secure links. Your internal team manages workflows inside Keelstar.
Yes. Request history, submissions, approvals, and screening results export with timestamps.
Most teams start with one workflow and expand to the full vendor packet as they onboard more modules.
You control reminder cadence. Keelstar nudges non-responders until they submit or you escalate.
Keelstar covers W-9, COI, OIG screening, contracts, invoices, and policies on shared vendor records.